Home / 380,748.22-570,521.50-140,531.49

Finding the Fourth Proportional to 380,748.22, 570,521.50 and 140,531.49

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Solution

The fourth proportional to 380,748.22, 570,521.50 and 140,531.49 is: 210,575.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,748.22 : 570,521.50 = 140,531.49 : x
  2. Step 2: Convert to fraction form
    380,748.22/570,521.50 = 140,531.49/x
  3. Step 3: Cross multiply
    380,748.22x = 570,521.50 × 140,531.49
  4. Step 4: Simplify right side
    380,748.22x = 80,176,236,120.71
  5. Step 5: Solve for x
    x = 80,176,236,120.71/380,748.22
  6. Step 6: Final answer
    x = 210,575.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.